watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [syz.2.693:3454]
Modules linked in:
CPU: 1 PID: 3454 Comm: syz.2.693 Not tainted 5.15.151-syzkaller-00059-g5356d2f17edf #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:find_stack lib/stackdepot.c:207 [inline]
RIP: 0010:__stack_depot_save+0x167/0x470 lib/stackdepot.c:304
Code: de eb 03 44 89 ff 48 8b 05 2e 74 ab 04 44 89 f1 81 e1 ff 0f 00 00 48 89 45 b0 48 89 4d b8 4c 8b 24 c8 4c 89 cb 41 89 df eb 04 <4d> 8b 24 24 4d 85 e4 74 2d 45 39 74 24 08 75 f0 41 39 5c 24 0c 75
RSP: 0018:ffffc900001d0828 EFLAGS: 00000286
RAX: ffff88823fe80000 RBX: 000000000000000b RCX: 000000000000008e
RDX: ffffc900001d08e4 RSI: 0000000000000001 RDI: 0000000000000a20
RBP: ffffc900001d0880 R08: 0000000000000001 R09: 000000000000000b
R10: ffffc900001d07f0 R11: dffffc0000000001 R12: ffff888146e89130
R13: ffffc900001d0890 R14: 000000001de2108e R15: 000000000000000b
FS: 00007fd70e1bd6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b33f11ff8 CR3: 00000001b6c85000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
kasan_save_stack mm/kasan/common.c:39 [inline]
kasan_set_track mm/kasan/common.c:45 [inline]
set_alloc_info mm/kasan/common.c:433 [inline]
__kasan_slab_alloc+0xc3/0xe0 mm/kasan/common.c:466
kasan_slab_alloc include/linux/kasan.h:217 [inline]
slab_post_alloc_hook+0x53/0x2c0 mm/slab.h:550
slab_alloc_node mm/slub.c:3240 [inline]
slab_alloc mm/slub.c:3248 [inline]
kmem_cache_alloc+0xf5/0x200 mm/slub.c:3253
kmem_cache_alloc_node include/linux/slab.h:474 [inline]
__alloc_skb+0xbe/0x550 net/core/skbuff.c:416
alloc_skb include/linux/skbuff.h:1183 [inline]
ndisc_alloc_skb+0xf3/0x2d0 net/ipv6/ndisc.c:421
ndisc_send_rs+0x26c/0x6a0 net/ipv6/ndisc.c:687
addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3977
call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1427
expire_timers kernel/time/timer.c:1472 [inline]
__run_timers+0x72a/0xa10 kernel/time/timer.c:1743
run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1756
__do_softirq+0x26d/0x5bf kernel/softirq.c:565
invoke_softirq kernel/softirq.c:425 [inline]
__irq_exit_rcu+0x50/0xf0 kernel/softirq.c:648
irq_exit_rcu+0x9/0x10 kernel/softirq.c:660
sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1096
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:finish_task_switch+0x16f/0x7b0 kernel/sched/core.c:5024
Code: 74 08 4c 89 ff e8 a1 70 65 00 49 8b 1f 48 85 db 4c 8b 6d c0 0f 85 ce 00 00 00 4c 89 e7 e8 b9 84 7c 03 fb 49 8d 9d 38 0b 00 00 <48> 89 d8 48 c1 e8 03 49 be 00 00 00 00 00 fc ff df 42 0f b6 04 30
RSP: 0018:ffffc90000d67be0 EFLAGS: 00000282
RAX: 0000000080000001 RBX: ffff888140a10b38 RCX: 0000000000000002
RDX: 0000000040000002 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffffc90000d67c30 R08: ffffffff8191d4d9 R09: fffffbfff0e0cc23
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f71378c0
R13: ffff888140a10000 R14: 1ffff1103ee27081 R15: ffff8881f7138408
context_switch kernel/sched/core.c:5155 [inline]
__schedule+0xcd4/0x1590 kernel/sched/core.c:6512
preempt_schedule_irq+0xc7/0x140 kernel/sched/core.c:6916
irqentry_exit_cond_resched+0x2a/0x30 kernel/entry/common.c:392
irqentry_exit+0x30/0x40 kernel/entry/common.c:426
sysvec_irq_work+0x52/0xb0 arch/x86/kernel/irq_work.c:17
asm_sysvec_irq_work+0x1b/0x20 arch/x86/include/asm/idtentry.h:664
RIP: 0010:exit_to_user_mode_loop+0x46/0xe0 kernel/entry/common.c:162
Code: 70 e0 56 00 e8 3b 68 f7 00 fa e8 c5 6a 64 03 65 48 8b 05 fd 5a a3 7e 48 8b 18 f7 c3 0e 30 02 00 0f 84 87 00 00 00 fb f6 c3 08 <74> 05 e8 63 b2 68 03 f7 c3 00 10 00 00 74 08 4c 89 f7 e8 53 d2 37
RSP: 0000:ffffc90000d67ed0 EFLAGS: 00000202
RAX: 0000000000000001 RBX: 0000000000000008 RCX: 0000000000010000
RDX: 1ffffffff0e52408 RSI: 0000000000000008 RDI: ffffc90000d67f58
RBP: ffffc90000d67ee0 R08: ffffffff87292040 R09: ffffffff87292048
R10: ffffffff87292058 R11: ffffffff87292050 R12: 0000000000000000
R13: 0000000000000000 R14: ffffc90000d67f58 R15: ffff888140a10000
exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:208
irqentry_exit_to_user_mode+0x9/0x20 kernel/entry/common.c:314
irqentry_exit+0x12/0x40 kernel/entry/common.c:405
sysvec_apic_timer_interrupt+0x55/0xc0 arch/x86/kernel/apic/apic.c:1096
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0033:0x7fd70f55cf19
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd70e1bd048 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 00007fd70f6ed038 RCX: 00007fd70f55cf19
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 000000000000000c
RBP: 00007fd70f5cbe68 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007fd70f6ed038 R15: 00007ffc494f7b68
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 2933 Comm: syz.4.595 Not tainted 5.15.151-syzkaller-00059-g5356d2f17edf #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:debug_smp_processor_id+0x0/0x20 lib/smp_processor_id.c:59
Code: 0d 65 81 05 66 f0 3e 7b 00 00 ef ff 5d c3 0f 0b cc cc cc cc cc cc cc cc cc cc 55 48 89 e5 48 8b 05 3d 6f 68 02 5d c3 cc cc cc <55> 48 89 e5 48 c7 c7 80 12 83 85 48 c7 c6 c0 12 83 85 e8 09 00 00
RSP: 0018:ffffc90000007768 EFLAGS: 00000046
RAX: ffffffff817e1c5e RBX: ffffffff8602f9b8 RCX: ffff8881ad2b62c0
RDX: 0000000000010100 RSI: 0000000000000000 RDI: 00000000000000b0
RBP: ffffc90000007788 R08: ffffffff87292000 R09: ffffffff87292008
R10: ffffffff87292018 R11: ffffffff87292010 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffca1e18438 CR3: 000000010dc4a000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000020000300 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff2 DR7: 0000000000000600
Call Trace:
__sysvec_irq_work+0x63/0x1b0 arch/x86/kernel/irq_work.c:22
sysvec_irq_work+0x41/0xb0 arch/x86/kernel/irq_work.c:17
asm_sysvec_irq_work+0x1b/0x20 arch/x86/include/asm/idtentry.h:664
RIP: 0010:should_fail+0x1/0x510 lib/fault-inject.c:104
Code: c1 03 38 c1 0f 8c b4 fe ff ff 4c 89 ef e8 47 e4 30 ff e9 a7 fe ff ff e8 5d dd 41 02 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 55 <48> 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec 20 49 89 f6 49 89 ff
RSP: 0018:ffffc90000007880 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000a20 RCX: 0000000000000a20
RDX: 0000000000000001 RSI: 0000000000000060 RDI: ffffffff86a56460
RBP: ffffc900000078a8 R08: ffffffff8456a1cc R09: ffffed102712508a
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001
R13: ffff8881389283c0 R14: ffff88810004291c R15: dffffc0000000000
should_failslab+0x9/0x20 mm/slab_common.c:1351
slab_pre_alloc_hook+0x37/0xd0 mm/slab.h:525
slab_alloc_node mm/slub.c:3154 [inline]
slab_alloc mm/slub.c:3248 [inline]
kmem_cache_alloc_trace+0x48/0x210 mm/slub.c:3265
kmalloc include/linux/slab.h:603 [inline]
dst_cow_metrics_generic+0x55/0x1c0 net/core/dst.c:199
dst_metrics_write_ptr include/net/dst.h:118 [inline]
dst_metric_set include/net/dst.h:179 [inline]
icmp6_dst_alloc+0x385/0x560 net/ipv6/route.c:3285
ndisc_send_skb+0x27f/0xc90 net/ipv6/ndisc.c:489
ndisc_send_rs+0x532/0x6a0 net/ipv6/ndisc.c:703
addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3977
call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1427
expire_timers kernel/time/timer.c:1472 [inline]
__run_timers+0x72a/0xa10 kernel/time/timer.c:1743
run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1756
__do_softirq+0x26d/0x5bf kernel/softirq.c:565
invoke_softirq kernel/softirq.c:425 [inline]
__irq_exit_rcu+0x50/0xf0 kernel/softirq.c:648
irq_exit_rcu+0x9/0x10 kernel/softirq.c:660
sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1096
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:update_stack_state+0x3b3/0x460 arch/x86/kernel/unwind_frame.c:242
Code: 03 42 80 3c 38 00 74 08 4c 89 f7 e8 07 9d 7d 00 65 48 8b 05 7f 8f cd 7e 49 39 06 74 0d 48 89 df e8 42 fc ff ff 49 89 c6 eb 19 <48> 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 d7 9c 7d 00
RSP: 0018:ffffc90000cd7210 EFLAGS: 00000246
RAX: ffff8881ad2b62c0 RBX: ffffc90000cd7ed8 RCX: 1ffff9200019ae77
RDX: 1ffff9200019ae6e RSI: ffffc90000cd7ed0 RDI: ffffc90000cd73b8
RBP: ffffc90000cd72c8 R08: ffffc90000cd7448 R09: 000000000000000d
R10: ffffc90000cd7450 R11: dffffc0000000001 R12: 1ffff9200019ae74
R13: 0000000000000000 R14: ffffc90000cd7388 R15: dffffc0000000000
unwind_next_frame+0x3cb/0x700 arch/x86/kernel/unwind_frame.c:305
arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
save_stack+0xf6/0x1e0 mm/page_owner.c:139
__reset_page_owner+0x36/0x190 mm/page_owner.c:156
reset_page_owner include/linux/page_owner.h:26 [inline]
free_pages_prepare mm/page_alloc.c:1472 [inline]
free_pcp_prepare mm/page_alloc.c:1544 [inline]
free_unref_page_prepare+0x7c8/0x7d0 mm/page_alloc.c:3534
free_unref_page+0xe8/0x750 mm/page_alloc.c:3616
free_the_page mm/page_alloc.c:805 [inline]
__free_pages+0x61/0xf0 mm/page_alloc.c:5853
__vunmap+0x7bc/0x8f0 mm/vmalloc.c:2652
__vfree mm/vmalloc.c:2700 [inline]
vfree+0x7f/0xb0 mm/vmalloc.c:2731
kcov_put kernel/kcov.c:408 [inline]
kcov_close+0x2b/0x50 kernel/kcov.c:510
__fput+0x3fe/0x910 fs/file_table.c:280
____fput+0x15/0x20 fs/file_table.c:308
task_work_run+0x129/0x190 kernel/task_work.c:164
exit_task_work include/linux/task_work.h:32 [inline]
do_exit+0xc48/0x2ca0 kernel/exit.c:878
do_group_exit+0x141/0x310 kernel/exit.c:1000
get_signal+0x7a3/0x1630 kernel/signal.c:2896
arch_do_signal_or_restart+0xbd/0x1680 arch/x86/kernel/signal.c:867
handle_signal_work kernel/entry/common.c:148 [inline]
exit_to_user_mode_loop+0xa0/0xe0 kernel/entry/common.c:172
exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:208
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x26/0x160 kernel/entry/common.c:301
do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f463ea97f19
Code: Unable to access opcode bytes at RIP 0x7f463ea97eef.
RSP: 002b:00007f463d719048 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: 0000000000000000 RBX: 00007f463ec27f60 RCX: 00007f463ea97f19
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000005
RBP: 00007f463eb06e68 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f463ec27f60 R15: 00007fff934c8568
rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 1-....: (1 GPs behind) idle=f83/1/0x4000000000000000 softirq=22110/22113 fqs=1604 last_accelerate: 4685/7d85 dyntick_enabled: 1
(t=10002 jiffies g=22853 q=2053)
rcu: rcu_preempt kthread starved for 1417 jiffies! g22853 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt state:R running task stack:28288 pid: 14 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5152 [inline]
__schedule+0xccc/0x1590 kernel/sched/core.c:6512
schedule+0x11f/0x1e0 kernel/sched/core.c:6595
schedule_timeout+0x18c/0x370 kernel/time/timer.c:1890
rcu_gp_fqs_loop+0x2af/0xf80 kernel/rcu/tree.c:1972
rcu_gp_kthread+0xa4/0x350 kernel/rcu/tree.c:2145
kthread+0x421/0x510 kernel/kthread.c:337
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 2933 Comm: syz.4.595 Tainted: G L 5.15.151-syzkaller-00059-g5356d2f17edf #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:asm_sysvec_irq_work+0x0/0x20 arch/x86/include/asm/idtentry.h:660
Code: e8 55 58 e3 ff e9 b0 03 00 00 0f 01 ca fc 6a ff e8 b5 02 00 00 48 89 c4 48 8d 6c 24 01 48 89 e7 e8 25 4f e3 ff e9 90 03 00 00 <0f> 01 ca fc 6a ff e8 95 02 00 00 48 89 c4 48 8d 6c 24 01 48 89 e7
RSP: 0018:ffffc90000006c68 EFLAGS: 00000046
RAX: 1ffff92000000dbe RBX: ffffc90000006e08 RCX: ffffc90000cd7ca0
RDX: 1ffff92000000dbe RSI: ffffc90000cd7c90 RDI: ffffc90000006e38
RBP: ffffc90000006d48 R08: ffffc90000006ec8 R09: 0000000000000030
R10: ffffc90000006ed0 R11: dffffc0000000001 R12: ffffc90000cd0000
R13: ffffc90000cd8000 R14: dffffc0000000000 R15: ffffc90000006de0
FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffca1e18438 CR3: 000000010dc4a000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000020000300 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff2 DR7: 0000000000000600
Call Trace:
unwind_next_frame+0x3cb/0x700 arch/x86/kernel/unwind_frame.c:305
arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:38 [inline]
kasan_set_track+0x4b/0x70 mm/kasan/common.c:45
kasan_set_free_info+0x23/0x40 mm/kasan/generic.c:370
____kasan_slab_free+0x126/0x160 mm/kasan/common.c:365
__kasan_slab_free+0x11/0x20 mm/kasan/common.c:373
kasan_slab_free include/linux/kasan.h:193 [inline]
slab_free_hook mm/slub.c:1723 [inline]
slab_free_freelist_hook+0xbd/0x190 mm/slub.c:1749
slab_free mm/slub.c:3519 [inline]
kfree+0xc8/0x220 mm/slub.c:4579
skb_free_head net/core/skbuff.c:656 [inline]
skb_release_data+0x8a9/0xa80 net/core/skbuff.c:678
skb_release_all net/core/skbuff.c:743 [inline]
__kfree_skb net/core/skbuff.c:757 [inline]
consume_skb+0xac/0x250 net/core/skbuff.c:930
netlink_broadcast_filtered+0x10f4/0x1220 net/netlink/af_netlink.c:1540
netlink_broadcast net/netlink/af_netlink.c:1562 [inline]
nlmsg_multicast include/net/netlink.h:1033 [inline]
nlmsg_notify+0x101/0x1c0 net/netlink/af_netlink.c:2548
rtnl_notify+0x9c/0xd0 net/core/rtnetlink.c:730
__neigh_notify+0xcc/0x120 net/core/neighbour.c:3386
neigh_cleanup_and_release+0x2c/0x1b0 net/core/neighbour.c:101
neigh_del net/core/neighbour.c:197 [inline]
neigh_remove_one+0x3a6/0x430 net/core/neighbour.c:218
neigh_forced_gc net/core/neighbour.c:251 [inline]
neigh_alloc net/core/neighbour.c:429 [inline]
___neigh_create+0x474/0x1bd0 net/core/neighbour.c:591
__neigh_create+0x32/0x40 net/core/neighbour.c:679
ip6_finish_output2+0x9ee/0x16e0 net/ipv6/ip6_output.c:123
__ip6_finish_output+0x60f/0x7c0 net/ipv6/ip6_output.c:197
ip6_finish_output+0x31/0x210 net/ipv6/ip6_output.c:207
NF_HOOK_COND include/linux/netfilter.h:294 [inline]
ip6_output+0x1f7/0x4d0 net/ipv6/ip6_output.c:230
dst_output include/net/dst.h:444 [inline]
NF_HOOK include/linux/netfilter.h:305 [inline]
ndisc_send_skb+0x73e/0xc90 net/ipv6/ndisc.c:509
ndisc_send_rs+0x532/0x6a0 net/ipv6/ndisc.c:703
addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3977
call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1427
expire_timers kernel/time/timer.c:1472 [inline]
__run_timers+0x72a/0xa10 kernel/time/timer.c:1743
run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1756
__do_softirq+0x26d/0x5bf kernel/softirq.c:565
invoke_softirq kernel/softirq.c:425 [inline]
__irq_exit_rcu+0x50/0xf0 kernel/softirq.c:648
irq_exit_rcu+0x9/0x10 kernel/softirq.c:660
sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1096
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:update_stack_state+0x3b3/0x460 arch/x86/kernel/unwind_frame.c:242
Code: 03 42 80 3c 38 00 74 08 4c 89 f7 e8 07 9d 7d 00 65 48 8b 05 7f 8f cd 7e 49 39 06 74 0d 48 89 df e8 42 fc ff ff 49 89 c6 eb 19 <48> 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 d7 9c 7d 00
RSP: 0018:ffffc90000cd7210 EFLAGS: 00000246
RAX: ffff8881ad2b62c0 RBX: ffffc90000cd7ed8 RCX: 1ffff9200019ae77
RDX: 1ffff9200019ae6e RSI: ffffc90000cd7ed0 RDI: ffffc90000cd73b8
RBP: ffffc90000cd72c8 R08: ffffc90000cd7448 R09: 000000000000000d
R10: ffffc90000cd7450 R11: dffffc0000000001 R12: 1ffff9200019ae74
R13: 0000000000000000 R14: ffffc90000cd7388 R15: dffffc0000000000
unwind_next_frame+0x3cb/0x700 arch/x86/kernel/unwind_frame.c:305
arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
save_stack+0xf6/0x1e0 mm/page_owner.c:139
__reset_page_owner+0x36/0x190 mm/page_owner.c:156
reset_page_owner include/linux/page_owner.h:26 [inline]
free_pages_prepare mm/page_alloc.c:1472 [inline]
free_pcp_prepare mm/page_alloc.c:1544 [inline]
free_unref_page_prepare+0x7c8/0x7d0 mm/page_alloc.c:3534
free_unref_page+0xe8/0x750 mm/page_alloc.c:3616
free_the_page mm/page_alloc.c:805 [inline]
__free_pages+0x61/0xf0 mm/page_alloc.c:5853
__vunmap+0x7bc/0x8f0 mm/vmalloc.c:2652
__vfree mm/vmalloc.c:2700 [inline]
vfree+0x7f/0xb0 mm/vmalloc.c:2731
kcov_put kernel/kcov.c:408 [inline]
kcov_close+0x2b/0x50 kernel/kcov.c:510
__fput+0x3fe/0x910 fs/file_table.c:280
____fput+0x15/0x20 fs/file_table.c:308
task_work_run+0x129/0x190 kernel/task_work.c:164
exit_task_work include/linux/task_work.h:32 [inline]
do_exit+0xc48/0x2ca0 kernel/exit.c:878
do_group_exit+0x141/0x310 kernel/exit.c:1000
get_signal+0x7a3/0x1630 kernel/signal.c:2896
arch_do_signal_or_restart+0xbd/0x1680 arch/x86/kernel/signal.c:867
handle_signal_work kernel/entry/common.c:148 [inline]
exit_to_user_mode_loop+0xa0/0xe0 kernel/entry/common.c:172
exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:208
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x26/0x160 kernel/entry/common.c:301
do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f463ea97f19
Code: Unable to access opcode bytes at RIP 0x7f463ea97eef.
RSP: 002b:00007f463d719048 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: 0000000000000000 RBX: 00007f463ec27f60 RCX: 00007f463ea97f19
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000005
RBP: 00007f463eb06e68 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f463ec27f60 R15: 00007fff934c8568
NMI backtrace for cpu 1
CPU: 1 PID: 3454 Comm: syz.2.693 Tainted: G L 5.15.151-syzkaller-00059-g5356d2f17edf #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x151/0x1b7 lib/dump_stack.c:106
dump_stack+0x15/0x17 lib/dump_stack.c:113
nmi_cpu_backtrace+0x2f7/0x300 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x15d/0x270 lib/nmi_backtrace.c:62
arch_trigger_cpumask_backtrace+0x10/0x20 arch/x86/kernel/apic/hw_nmi.c:39
trigger_single_cpu_backtrace include/linux/nmi.h:166 [inline]
rcu_dump_cpu_stacks+0x1d8/0x330 kernel/rcu/tree_stall.h:349
print_cpu_stall+0x315/0x5f0 kernel/rcu/tree_stall.h:633
check_cpu_stall kernel/rcu/tree_stall.h:727 [inline]
rcu_pending kernel/rcu/tree.c:3968 [inline]
rcu_sched_clock_irq+0x989/0x12f0 kernel/rcu/tree.c:2619
update_process_times+0x198/0x200 kernel/time/timer.c:1794
tick_sched_handle kernel/time/tick-sched.c:257 [inline]
tick_sched_timer+0x188/0x240 kernel/time/tick-sched.c:1478
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x41a/0xad0 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x40c/0xaa0 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1085 [inline]
__sysvec_apic_timer_interrupt+0xfd/0x3c0 arch/x86/kernel/apic/apic.c:1102
sysvec_apic_timer_interrupt+0x44/0xc0 arch/x86/kernel/apic/apic.c:1096
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:queued_write_lock_slowpath+0x159/0x440 kernel/locking/qrwlock.c:78
Code: 41 81 0f 00 01 00 00 48 8b 5c 24 08 43 0f b6 04 2e 84 c0 0f 85 94 00 00 00 41 8b 07 3d 00 01 00 00 74 27 f3 90 43 0f b6 04 2e <84> c0 74 eb 44 89 f9 80 e1 07 80 c1 03 38 c1 7c de 4c 89 ff e8 ae
RSP: 0018:ffffc900001d0460 EFLAGS: 00000206
RAX: 0000000000000000 RBX: 1ffff9200003a096 RCX: ffffffff815510ee
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffffff86f92788
RBP: ffffc900001d0510 R08: dffffc0000000000 R09: fffffbfff0df24f2
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc900001d04b0
R13: dffffc0000000000 R14: 1ffffffff0df24f1 R15: ffffffff86f92788
queued_write_lock include/asm-generic/qrwlock.h:97 [inline]
__raw_write_lock_bh include/linux/rwlock_api_smp.h:204 [inline]
_raw_write_lock_bh+0x10a/0x170 kernel/locking/spinlock.c:324
neigh_forced_gc net/core/neighbour.c:236 [inline]
neigh_alloc net/core/neighbour.c:429 [inline]
___neigh_create+0x1f3/0x1bd0 net/core/neighbour.c:591
__neigh_create+0x32/0x40 net/core/neighbour.c:679
ip6_finish_output2+0x9ee/0x16e0 net/ipv6/ip6_output.c:123
__ip6_finish_output+0x60f/0x7c0 net/ipv6/ip6_output.c:197
ip6_finish_output+0x31/0x210 net/ipv6/ip6_output.c:207
NF_HOOK_COND include/linux/netfilter.h:294 [inline]
ip6_output+0x1f7/0x4d0 net/ipv6/ip6_output.c:230
dst_output include/net/dst.h:444 [inline]
NF_HOOK include/linux/netfilter.h:305 [inline]
ndisc_send_skb+0x73e/0xc90 net/ipv6/ndisc.c:509
ndisc_send_rs+0x532/0x6a0 net/ipv6/ndisc.c:703
addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3977
call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1427
expire_timers kernel/time/timer.c:1472 [inline]
__run_timers+0x72a/0xa10 kernel/time/timer.c:1743
run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1756
__do_softirq+0x26d/0x5bf kernel/softirq.c:565
invoke_softirq kernel/softirq.c:425 [inline]
__irq_exit_rcu+0x50/0xf0 kernel/softirq.c:648
irq_exit_rcu+0x9/0x10 kernel/softirq.c:660
sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1096
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:finish_task_switch+0x16f/0x7b0 kernel/sched/core.c:5024
Code: 74 08 4c 89 ff e8 a1 70 65 00 49 8b 1f 48 85 db 4c 8b 6d c0 0f 85 ce 00 00 00 4c 89 e7 e8 b9 84 7c 03 fb 49 8d 9d 38 0b 00 00 <48> 89 d8 48 c1 e8 03 49 be 00 00 00 00 00 fc ff df 42 0f b6 04 30
RSP: 0018:ffffc90000d67be0 EFLAGS: 00000282
RAX: 0000000080000001 RBX: ffff888140a10b38 RCX: 0000000000000002
RDX: 0000000040000002 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffffc90000d67c30 R08: ffffffff8191d4d9 R09: fffffbfff0e0cc23
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f71378c0
R13: ffff888140a10000 R14: 1ffff1103ee27081 R15: ffff8881f7138408
context_switch kernel/sched/core.c:5155 [inline]
__schedule+0xcd4/0x1590 kernel/sched/core.c:6512
preempt_schedule_irq+0xc7/0x140 kernel/sched/core.c:6916
irqentry_exit_cond_resched+0x2a/0x30 kernel/entry/common.c:392
irqentry_exit+0x30/0x40 kernel/entry/common.c:426
sysvec_irq_work+0x52/0xb0 arch/x86/kernel/irq_work.c:17
asm_sysvec_irq_work+0x1b/0x20 arch/x86/include/asm/idtentry.h:664
RIP: 0010:exit_to_user_mode_loop+0x46/0xe0 kernel/entry/common.c:162
Code: 70 e0 56 00 e8 3b 68 f7 00 fa e8 c5 6a 64 03 65 48 8b 05 fd 5a a3 7e 48 8b 18 f7 c3 0e 30 02 00 0f 84 87 00 00 00 fb f6 c3 08 <74> 05 e8 63 b2 68 03 f7 c3 00 10 00 00 74 08 4c 89 f7 e8 53 d2 37
RSP: 0000:ffffc90000d67ed0 EFLAGS: 00000202
RAX: 0000000000000001 RBX: 0000000000000008 RCX: 0000000000010000
RDX: 1ffffffff0e52408 RSI: 0000000000000008 RDI: ffffc90000d67f58
RBP: ffffc90000d67ee0 R08: ffffffff87292040 R09: ffffffff87292048
R10: ffffffff87292058 R11: ffffffff87292050 R12: 0000000000000000
R13: 0000000000000000 R14: ffffc90000d67f58 R15: ffff888140a10000
exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:208
irqentry_exit_to_user_mode+0x9/0x20 kernel/entry/common.c:314
irqentry_exit+0x12/0x40 kernel/entry/common.c:405
sysvec_apic_timer_interrupt+0x55/0xc0 arch/x86/kernel/apic/apic.c:1096
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0033:0x7fd70f55cf19
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd70e1bd048 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 00007fd70f6ed038 RCX: 00007fd70f55cf19
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 000000000000000c
RBP: 00007fd70f5cbe68 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007fd70f6ed038 R15: 00007ffc494f7b68